How to access Fracture Cells / Fracture Modifier in Blender 2.80?
I got a few answers across multiple channels:

#blender on irc.freenode.net:


   d33tah, try #blenderfracture (might need to wait for a response)


A thread on blenderartists.org:


  It has been removed for now, 2.8+ will get mantaflow which is much better for that stuff. It was supposed to be in the 2.8 release but they fell behind, So now they are shooting for 2.81.


An answer on blender.chat:


  Fracture modifier has never been part of Blender releases. It’s a separated branch that will be merged at some point in the 2.8x releases. But you can download a fracture modifier build from graphicall.org.